Sole-edge turning or bending machine



(No Model.)

G. GHABOT.

SOLE EDGE TURNING OR BENDING MACHINE. No. 247,305. Patented Sept.20,1881.

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i UNITED STATES PATENT OF ICE.

CYPRIEN OHABOT, OF PHILADELPHIA, PENNSYLVANIA.

SOLE-EDGE TURNING OR BENDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 247,305, datedSeptember 20, 1881.

Application filed February 23,1881. (No model.)

To all whom it may concern Be it, known that I, OYPRIEN CHABOT, acitizen of the United States, residing in Philadelphia,Pennsylvania,haveinvented certain Improvements in Sole-Edge Turning or Bending'Machines, of which the following is a specification.

My invention relates to certain improvements in that class of machinesdesigned for bending or turning down the edge of a shoesole after it hasbeen subjected to the action of the channeling-machine, the main objectsof my improvements being to provide for the proper feeding of the solewithout interference with the action of the edge turning wheels, and toinsure the opening of the thread-slot which has been formed in the soleby the channeler. These objects I attain in a manner too fully describedhereinafter to need detailed preliminary explanation.

In the accompanying drawings, Figure 1 is a longitudinal section of m yimproved sole-edgeturning machine; Fig. 2, a front view of part of thesame; Fig. 3, a view of the edge ofthe sole as prepared by thechanneling-machine; and Fig. 4, a diagram illustrating the character ofthe work performed by my improved machine.

A represents a post or column having afiaring base adapted to be securedto a table or similar support. On the upper end of this post A is formeda yoke or frame, B, the opposite vertical standards of which areprovided with bearings for two longitudinalshafts, D and E, arranged oneabove the other, the

' upper shaft, E, having its bearings directly in the frame B, and thelower shaft,'D, being adapted to boxes G and H,theformerof which ispivoted at a: to the rear standard of the frame 13, while the box H isat liberty to slide vertically in the front standard of the frame, thedepression of the box being effected by means of a rod,R, which extendsdown through the supporting-table and is connected to a suitabletreadle, a coiled spring, S,tending to elevate the box, and the tensionof this spring being regulated by means of an adjustingscrew, T, adaptedto a threaded opening in the base of the post A.

The boxes G and H may be independent of wheel and spindle. a

each other; but it is preferred to connect them together either by aframe, as shown in Fig. 1, or by suitable rods, so that the movement ofthe boxes may be effected without any strain upon the shaft D.

The front or projecting end of the shaft E is slightly enlarged indiameter'and is furnished with a beveled shoulder, g, and the front orprojecting end of the shaft D is reduced in diameter for the receptionof a beveled ring, j, and has a central opening for the reception of thestem of'a block, 2', having a rounded or V- shaped edge, the ring j, andblock 6 being firmly secured to the shaft D and acting in conjunctionwith the flange g on the shaft E, to eifect the turning or bending ofthe edge of the sole.

The ringj and block imay be cast in one piece, if desired; but it ispreferable to make them separate, as described, in order that eitherpart can be changed to suit the varying character of the edges of thesoles which have to be acted upon.

The shaft E is made tubular for the reception ot'a spindle, e, which issecured to the said shaft E at the rear end, the front end of thespindle, however, projectingbeyond the front end of the shaft and beingprovided with a notched or serrated feed-wheel, f. The tendency of thespindle c is to remain in line with the axis of the shaft E; but saidspindle possesses sumcient elasticity to permit a slight verticalmovement of the feed-wheel fwhen pressure is exerted upon thelatter,'(see dotted linesf, Fig. 1,) the central opening'ot' the shaft Ebeing flared toward the front end in order to permit this movement ofthe feed- The degreeof elasticity of the'spindle may be regulated bymeans of set-screws adapted to threaded openings in the shaft E andserving to confine the spindlee to said shaft at a point more or lessremote from the front end of the same; for the greater the distancebetween the end of the spindle and the point of confinement of the samethe greater will be the elasticity of the spindle, the elasticitydecreasing as the distance decreases.

An arm on the frame B carries a transverse pin, 1, to which is hungalever, m, the short arm of which is provided with an anti-frictionroller bearing upon the front end of a spring, 7c, having its fulcrum ona stud on the frame B and acted upon at the rear end by a thumbnut, theadjustment of which regulates the tension of the spring. The tendency ofthis spring is to retain the lever m in either of its extremepositions-that is to say, in the depressed position shown in Fig. 1, orin the elevated position shown in Fig. 2.

To a suitable bearing in the levermis adapted a stem, 11., carrying atthe lower end abeveled disk, h, the upper end of the stem being adaptedto an opening in a threaded stem, n, by adjusting which the position ofthe disk h, in respect to the lever, may be varied, as desired.

The rear end of the shaft D is provided with an operating-crank, O, andthe two shafts, D and E, are suitably geared together, so as to turn inopposite directions.

The operation of the machine is as follows: The lever m being elevated,as shown in Fig. 2, pressure is applied to the treadle connected to therod B, so as to depress the box H and the outer end of the lower shaft,D. A shoesole, previously prepared by the channelingmachine, so as topresent a grooved edge, 1', and an inclined slot, at, adjacent thereto,as shown in Fig. 3, is then adjusted to its proper position in respectto the flange g ofthe shaft E, and the shaft D allowed to ascend, so asto bend the edge of the sole and press the same firmly against theflange g and feed-wheel f. The lever m is depressed, so that the edge ofits disk h enters the slot at, and the crank G'is rotated, therebyrotating the shafts D and E in opposite directions, and causing the soleto be fed through the machine by the action of the feed-wheel f thereon,the edge of the sole being bent, as shown, and the disk h remaining inthe slot u and serving to effect the openin g of the same, in the mannerillustrated in Fig. 4. The feed-wheel f is at liberty to yieldvertically to accommodate itself to inequalities in the thickness of thesole,without affecting the position of the edge-turning flange 9 on theshaft E, the latter always preserving one position and thereby insuringthe uniform turning or bending of the edge of the sole, independent ofthe variations in the thickness of the same.

It should be understood that the ed ge-bending wheels and the feed-wheelmust be so proportioned in respect to each other or so driven as totravel at the same surface speed, otherwise there will be a drag on thework.

In carrying out my invention it is not absolutely necessary that theconstruction shown should be adhered to in all cases. Forinstance,

instead of securing the rear end of the spindle e to the shaftE andrelying upon the inherent elasticity of said spindle to hold thefeed-wheel f to its work, the spindle might be connected to the shaft bya universal joint, the outer end of the spindle in this case being actedupon by a suitable spring, and a kind of spring different from thatshown may be used for acting upon the lever m or upon an arm which maytake the place of said lever, or-a fixed slotopening, blade, or wheelmay take the place of the swinging disk h. The arrangements shown in thedrawings are preferred,however, as they are simple and compact, and havebeen found to be effective in practice.

I claim as my invention 1. In a sole-edge-bending machine, thecombination of edge bending and feeding wheels and means of rotating thesame with a device for opening the thread-slot of the solesimultaneously with the bending of the edge of the latter, as set forth.7

2. In a sole-edge-bending machine, the combination of edge bending andfeeding wheels and means for rotating the same with a threadslot opener,and means for applying the same to and removing it from said slot, asspecified.

3. The combination of the shaft D and the hollow shaft E, each providedwith an edgebending wheel, means for rotating said shafts, and aspindle, 6, adapted to the hollow shaft E and connected thereto at therear end, but having its front end unconfined and provided with afeeding-wheel, f, as set forth.

4. The combination of the shaft D with a sole-edge-bending wheelcomprising a ring, j, and block 1 detachable from each other and fromthe shaft D, as set forth.

5. The combination of the frame B, the soleedge bending and feedingwheels, and means for rotating the same, the lever m, hung to the frameB and carrying the disk h for opening the thread-slot, and the springfor acting on said lever m, as set forth.

6. The combination of the sole-edge bending and feeding wheels and meansfor rotating the same with the lever m, the disk h, having a stem, 1,adapted to said lever, and the threaded stem u, for adjusting said stemn, asset forth.

In testimony whereof I have signed my'name to this specification in thepresence of two subscribing witnesses.

OYPRIEN OHABOT. Witnesses:

JAMES F. Tonnv, HARRY SMITH.

